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The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included. |
Scope of work includes: | barriers to heat transfer effects of air in a steam system heat transfer interpretation of plans and specifications, and sizing and documenting layout of steam distribution systems for residential, commercial and industrial applications for either new projects or an existing structure being renovated, extended, restored or maintained principles and properties of steam systems, including: characteristics of condensation methods of condensate removal steam applications, including commercial, manufacturing, institution and machinery and equipment operation working with types of steam and steam quality, including: dry steam flash steam properties of steam at varying pressures superheated steam wet steam. |
Design requirements include: | architectural specifications builder specifications owner requirements specialist water use applications. |
Cost-benefit analysis includes: | comparison of range of suitable materials and system choices available to enable cost-effective choices to be made without compromising integrity of project. |
Statutory and regulatory requirements and Australian and New Zealand standards include: | Acts, regulations and local and state government policies, including group and strata titling Australian and New Zealand standards Building Code of Australia. |
Manufacturer requirements include: | material specifications sizing tables technical and trade manuals. |
Desktop study includes: | collection and interpretation of existing data for design purposes from: architectural and building plans council plans developer plans other documents, including: applications forms other reports as available. |
Performance requirements include: | steam generation and consumption, and steam and pressure quality, established using Australian and New Zealand standards and manufacturers' information. |
Layout of pipework systems: | should not unduly affect building integrity and aesthetic appeal have principles of economy, serviceability, durability and fit for use applied. |
Fittings and valves include: | bends couplings isolating valves pressure relief valves steam headers steam traps tees unions. |
Pipe size calculations include: | energy pressure sizing storage volume. |
Steam appliances: | include: calorifiers industrial applications kitchen and laundry appliances sterilisers water heaters details should include: components construction electronic controls methods of temperature and pressure control. |
Boilers: | include: coal electric fire tube gas oil packaged solid fuel water tube factors to be considered when selecting a boiler: advantages and disadvantages of boiler types capacity and size designs based on anticipated use energy sources methods of reducing heat losses pressure controls and components storage requirement calculations suitable time period between refilling valves. |
Steam circuits include: | condensate return feed pumps feed tanks headers steam distribution water treatment. |
Steam trap types and their operation: | types include: mechanical thermodynamic thermostatic other applicable types operation includes: installation location. |
Steam injection includes: | noise control open ended pipe proprietary sparge pipe. |
Insulation: | includes: felt fibreglass rock wool insulation protection, includes: plastic sheet metal. |
Pipe fixings include: | anchors bracket spacing corrosion protection hanging brackets material requirements saddles wall and ceiling brackets. |
Materials include: | copper steel other approved materials. |
Jointing methods include: | brazing mechanical joints threading. |
Installation requirements include: | clipping installation details jointing requirements level of workmanship. |
Designed includes: | cost relating to performance, including: milestones standard procedures standards of work work schedules prescriptive designs, including detail relating to: materials and quality of work nominated subcontractors provision of on-site facilities and site access quality assurance. |
Plans may include: | axonometrics cross-sections details elevations isometrics schematics, which may be produced using: computer generation. Indian ink pencil pigment liner sections. |
Specification includes: | appliances clipping details of specialised components jointing manufacturer requirements materials valves workmanship. |
Testing includes: | flow testing inspection checklist leak testing pressure testing quality assurance (QA) audit. |
Commissioning schedule includes: | checking for burrs and obstructions commissioning appliances confirming fit for purpose purging system removing contaminants. |
Operation and maintenance manual includes: | check for blockages leak detection regular inspection regular maintenance requirements. |